Question

Wihich of the halogens listed in the standard electrode potential table is the best oxidizing agent....

Wihich of the halogens listed in the standard electrode potential table is the best oxidizing agent. Explain.

Homework Answers

Answer #1

If the standard electrode potential of an electrode is greater than zero,then its reduced form more stable compared to H2 gas that is in other words,the substance element or ion is more easily reduced and it is strong oxidising agent.

Strong reduction potential for F2 is the heighest which means F2 reduced to F- ions most easily.

Because,

1. The ∆H°(X2/X-) decreases from F2 to I2.The values being: -249 for F2,-228 for Cl2,-212 for Br2 and for I2,-188 kj mol^-1.The reason is that for F2,atomisation energy is really low,due to its strong lp-lp repulsion is also very high.

2. High electronegativity as 4 and small size

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